package mask;

public class Title5 {
	public static void main(String[] args) {
		int sum=0;
		for(int i = 0; i <= 100; i ++){
			if(i%7 == 0) {
				sum += i;
			}
		}
		System.out.println("100以内所有7的倍数的和是" + sum);
	}
}
